replace exact
flag only applies when symbols > 1
#16785
Merged
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References to other Issues or PRs
close #16725
Brief description of what is fixed or changed
The exact flag prevents an expression with a single Wild from matching a zero but the docstring says that it should only do that if there is more than one Wild symbol in the expression.
The doc string had been updated to indicate that setting the flag explicitly will override the default behavior.
Other comments
Very interesting that the
manual_subs
test failed in 3.7 but not in 3.6 when exact was set to false. The docstring shows the rather convoluted expression that will be obtained from non-atomic wild expressions.Release Notes